Hello,
I am working with a customer who needs to load share from two separate battery packs.
Each pack is individually removable and rechargeable by the user, so we do not want the packs connected in parallel (in case a dead pack is inserted with a charged pack).
I want to explore using ideal diodes to allow both packs to power the load. They don't need to provide equal current, but I also don't want one pack to completely discharge while the other is full.
Is this possible with our current smart diode controllers? I have attached some simulations:
- If the packs are perfectly ideal (same charge, same internal resistance), the solution works exactly, sharing the load 50/50.
- If the packs start at different voltages, they alternate providing the load in several second intervals.
- If the packs have varying internal resistance, they have the same problem.
I know these simulations are crude representations of the real system. Would this work, and are there any special design considerations to worry about?
Thank you,
Ryan B
Load Share Ideal.TSCLoad Share Voltage Mismatch.TSCLoad Share Impedance Mismatch.TSC
